Corvusite
水复钒矿
🗣️ 情景例句
Forgive my ignorance, But what exactly are you talking about?
请原谅我的孤陋寡闻，你说的到底是什么？
What's the shape of your balloon?
你的气球是什么形状？
I don't like to be late. We begin classes at 8:00.
我不喜欢迟到。我们八点上课。